my Ford Mustang S650 (2024-Present) has a coolant leak, how to find the source?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the engine is cool and the vehicle is parked on a level surface.
• Disconnect the battery to prevent any electrical issues.

2. Locate the Source of the Leak

• Tools Required: Pressure tester, flashlight.
• With the pressure tester, pressurize the cooling system to the recommended pressure (usually around 15-20 psi).
• Carefully inspect all components under pressure for signs of coolant seeping or dripping.
• Use a flashlight to check hard-to-see areas such as behind the engine and near the firewall.

3. Repair or Replace Affected Components

• Tools Required: Socket set, screwdrivers, hose clamps, coolant.
• If a hose is leaking, loosen the hose clamps and remove the damaged hose. Replace it with a new hose and secure it with clamps.
• If the radiator is leaking, remove it by:
  1. Draining the coolant from the system.
  2. Disconnecting any electrical connectors.
  3. Removing the mounting bolts and lifting the radiator out.
  4. Installing the new radiator in reverse order, ensuring all connections are tight.
• If the water pump is leaking, remove the serpentine belt, unbolt the pump, and replace it with a new one. Reassemble and retighten according to the manufacturer's specifications.

4. Refill and Bleed the Cooling System

• Tools Required: Funnel, coolant.
• Refill the coolant reservoir with the recommended coolant type.
• Start the engine and let it run with the radiator cap off until the thermostat opens (watch for coolant movement). Add coolant as necessary.
• Replace the radiator cap and run the engine to check for leaks.